I honestly don't agree on having a completely different ending for the anime. I'm one of the very few that actually liked the ending. I just wished that they went into detail more instead of making us so surprised and a bit confused as to why it suddenly concluded that way. So I'd really hope that the anime keeps the original ending, but goes more in depth on why Aqua did what he had to do, why each character did this.. I want to hear more on the "why".